Cats
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
cat safety reference
Is Lily of the Valley safe for cats?
Convallaria majalis
Lily of the Valley is a popular spring-flowering perennial known for its fragrant, bell-shaped white flowers. It contains cardiac glycosides that are highly toxic to pets if ingested.
Convallaria majalisLily of the ValleyMay bells
- Light
- Partial shade to full shade
- Habit
- Rhizomatous perennial
- Care
- Low
Safety status
What this means for your cat
Lily of the valley is a cardiac emergency for cats — not a stomach-ache plant. Every part (leaves, flowers, berries, and the vase water) contains cardiac glycosides that disrupt heart rhythm. Treat any suspected ingestion as urgent, even if your cat seems fine right now.
What to watch for
Earliest: vomiting, drooling, and lethargy. Quickly progressing to slow or irregular heartbeat, low blood pressure, disorientation, weakness, and in severe cases seizures or collapse. Heart and GI signs together after garden access are a major red flag.
Time window
Pet Poison Helpline reports clinical signs typically begin within the first 2 hours after exposure and can persist 4–5 days during treatment.
When to call the vet
Call your vet, ASPCA Poison Control (888-426-4435), or Pet Poison Helpline (855-764-7661) immediately — do not wait for symptoms to worsen. ECG monitoring and supportive care are usually required.
Sources: ASPCA, Pet Poison Helpline.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Vomiting, irregular heartbeat, low blood pressure, disorientation, and potential seizures.
Escalation note
This plant is considered highly toxic. Ingestion of any part of the plant can lead to life-threatening cardiac arrhythmias. Contact your veterinarian immediately if ingestion is suspected.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
Source evidence
NC State Extension Plant Toolbox
botanical · 94% reliability
Convallaria majalis is a rhizomatous perennial that is highly toxic to humans and animals.
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